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Finding the Fourth Proportional to 251,267.36, 376,899.12 and 64,278.56

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Solution

The fourth proportional to 251,267.36, 376,899.12 and 64,278.56 is: 96,417.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,267.36 : 376,899.12 = 64,278.56 : x
  2. Step 2: Convert to fraction form
    251,267.36/376,899.12 = 64,278.56/x
  3. Step 3: Cross multiply
    251,267.36x = 376,899.12 × 64,278.56
  4. Step 4: Simplify right side
    251,267.36x = 24,226,532,698.87
  5. Step 5: Solve for x
    x = 24,226,532,698.87/251,267.36
  6. Step 6: Final answer
    x = 96,417.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.